Complex phase transitions and phase engineering in the aqueous solution of an isopolyoxometalate cluster.

ABSTRACT: Inorganic salts usually demonstrate simple phasal behaviors in dilute aqueous solution mainly involving soluble (homogeneous) and insoluble (macrophase separation) scenarios. Herein, we report the discovery of complex phase behavior involving multiple phase transitions of clear solution - macrophase separation - gelation - solution - macrophase separation in the dilute aqueous solutions of a structurally well-defined molecular cluster [Mo₇O₂₄]^6- macroanions with the continuous addition of Fe³⁺. No chemical reaction was involved. The transitions are closely related to the strong electrostatic interaction between [Mo₇O₂₄]^6- and their Fe³⁺ counterions, the counterion-mediated attraction and the consequent

SUBMITTER: Wang ZD 

PROVIDER: S-EPMC10183013 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature